Distribution
Asia-Tropical: Philippines (Philippines present)
Morphology
The internally strongly dimorphic fronds make this an easily recognisable species. Both fully sterile and fully fertile fronds are rare, usually at least the apical part of the apical segment is fertile, or the basal part of the basal pinnae sterile.
Citation
Copel. 1960: Fern Fl. Philipp.: 503
Alderw. 1908: Malayan Ferns: 667
Zamora & Co 1986 – In: Guide Philipp. Flora & Fauna: 155
Alderw. 1917: Malayan Ferns: 400
